Low pressure vacuum tube solar thermal collector
Features description:
The glass tube solar collector (nonpressurized) consists of glass vacuum tube, nonpressurized manifold and supporting bracket, working principle is thermosyphon the same as integrated non-pressurized system, water is heated directly in glass tubes, taking advantage of the natural circulation due to smaller density in hot water than cold water. Series or/and parallel arrays of solar collector is usually adopted for large-scale hot water heating project.
1. Especially designed for large-scale hot water heating system, supplying hot water for dormitories, hotels, restaurants, schools, hospitals, factories, swimming pools, and some other sites requiring hot water use or house heating.
2. All-glass vacuum tube, most economical and good performance at the same time
3. Processed color steel shell and galvanized bracket make it a long lifespan as vacuum tubes
4. Easy installation and connection and little maintenance needed
Warranty: 3 years international responsibility for integrated collector exchange and 15 years for glass vacuum tube compensation due to original quality problems
| Vacuum tube |
Spec.(mm) |
Φ47×1500 Φ58×1800 |
| Tube (pcs) |
15/ 20 / 25 / 30 |
| Material |
3.3 Borosilicate glass, magnetron spluttering coating |
| Coating |
AL/AL-ALN(H)/AL-ALN(L)/ALN or Cu/SS-ALN(H)/SS-ALN(L)/ALN |
| Manifold |
Dimension |
180*160mm, 1.0 inch inlet & outlet |
| Inner tank |
Food-grade stainless steel SUS304-2B 0.4mm |
| Tank shell |
White color steel |
| Insulation |
High-density polyurethane integrated foam-forming layer |
| Bracket |
Coated galvanized angle steel 30*30*3mm |
| Accessories |
Stainless bolts & nuts, waterproof silicon rubber seal,
dustproof rubber seal, plastic tube holder |
| Working pressure |
≤ 1 bar |
| Tilt angle |
0~ 90° |
| Hail resistance |
Φ25mm diameter |
Audited Supplier 
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